100% WORKING HARD DRIVES 2.5" and 3.5"
2.5" are usually in Laptops but can be used in desktops.
3.5" will only fit in desktops.
100% Working, Tested and Formatted internal Hard drives all sizes 2.5" & 3.5"
If you have a specific Brand you are looking for let me know and I will try to accommodate you.